{"id":52,"date":"2014-12-17T01:00:51","date_gmt":"2014-12-16T16:00:51","guid":{"rendered":"http:\/\/astro.ksgnet.org\/?p=52"},"modified":"2020-06-06T21:29:17","modified_gmt":"2020-06-06T12:29:17","slug":"ic434-horse-head-nebula","status":"publish","type":"post","link":"https:\/\/astronote.ksgnet.org\/index.php\/2014\/12\/17\/ic434-horse-head-nebula\/","title":{"rendered":"IC434 &#8211; Horse Head Nebula"},"content":{"rendered":"<p>The <b>Horsehead Nebula<\/b> (also known as <b>Barnard 33<\/b>) is a <a title=\"Dark nebula\" href=\"https:\/\/en.wikipedia.org\/wiki\/Dark_nebula\">dark nebula<\/a> in the constellation <a title=\"Orion (constellation)\" href=\"https:\/\/en.wikipedia.org\/wiki\/Orion_%28constellation%29\">Orion<\/a>.<sup id=\"cite_ref-1\" class=\"reference\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Horsehead_Nebula#cite_note-1\">[1]<\/a><\/sup> The nebula is located just to the south of the star <a class=\"mw-redirect\" title=\"Zeta Orionis\" href=\"https:\/\/en.wikipedia.org\/wiki\/Zeta_Orionis\">Alnitak<\/a>, which is farthest east on Orion&#8217;s Belt, and is part of the much larger <a title=\"Orion Molecular Cloud Complex\" href=\"https:\/\/en.wikipedia.org\/wiki\/Orion_Molecular_Cloud_Complex\">Orion Molecular Cloud Complex<\/a>. The nebula was first recorded in 1888 by <a title=\"Scotland\" href=\"https:\/\/en.wikipedia.org\/wiki\/Scotland\">Scottish<\/a> astronomer <a title=\"Williamina Fleming\" href=\"https:\/\/en.wikipedia.org\/wiki\/Williamina_Fleming\">Williamina Fleming<\/a> on photographic plate B2312 taken at the <a title=\"Harvard College\" href=\"https:\/\/en.wikipedia.org\/wiki\/Harvard_College\">Harvard College<\/a> Observatory. The Horsehead Nebula is approximately 1500 <a class=\"mw-redirect\" title=\"Light year\" href=\"https:\/\/en.wikipedia.org\/wiki\/Light_year\">light years<\/a> from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which bears some resemblance to a <a title=\"Horse\" href=\"https:\/\/en.wikipedia.org\/wiki\/Horse\">horse<\/a>&#8216;s head when viewed from Earth.<sup id=\"cite_ref-noao.edu_2-0\" class=\"reference\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Horsehead_Nebula#cite_note-noao.edu-2\">[2]<\/a><\/sup><\/p>\n<p>\uff08quote from wikipedia\uff09<\/p>\n<hr \/>\n<p style=\"text-align: center;\">&gt;&gt;&gt;&gt;&gt;\u00a0<a href=\"https:\/\/www.flickr.com\/photos\/130600202@N05\/19911599926\/sizes\/l\" target=\"_blank\" rel=\"noopener noreferrer\">Show full size photograph on the new tab.<\/a>\u00a0&lt;&lt;&lt;&lt;&lt;<\/p>\n<hr \/>\n<table>\n<tbody>\n<tr style=\"height: 84.0333px;\">\n<td style=\"height: 84.0333px;\">Date and Place<\/td>\n<td style=\"height: 84.0333px;\">2014-12-14 Kibougaoka, Fukushima<\/td>\n<\/tr>\n<tr style=\"height: 103px;\">\n<td style=\"height: 103px;\">Scope<\/td>\n<td style=\"height: 103px;\">Takahashi Epsilon180ED + BetaSGR Focuser<\/td>\n<\/tr>\n<tr style=\"height: 45px;\">\n<td style=\"height: 45px;\">Mount<\/td>\n<td style=\"height: 45px;\">Celestron CGEM<\/td>\n<\/tr>\n<tr style=\"height: 64px;\">\n<td style=\"height: 64px;\">Camera<\/td>\n<td style=\"height: 64px;\">Atik383L+<br \/>\n-25[deg-c]<\/td>\n<\/tr>\n<tr style=\"height: 45px;\">\n<td style=\"height: 45px;\">Auto guiding<\/td>\n<td style=\"height: 45px;\">Off-axis Superstar + GPUSB<\/td>\n<\/tr>\n<tr style=\"height: 64px;\">\n<td style=\"height: 64px;\">Filter<\/td>\n<td style=\"height: 64px;\">Astrodon Tru-balance Gen.2 LRGB Filter 36[mm] Unmounted<br \/>\nAstrodon Ha 5[nm] Filter 36[mm] Unmounted<\/td>\n<\/tr>\n<tr style=\"height: 64px;\">\n<td style=\"height: 64px;\">Exposure<\/td>\n<td style=\"height: 64px;\">L : 12x 900[s]<br \/>\nR : 4x 300[s], G : 4x 300[s], B : 5x 600[s]<br \/>\nHa : 12x 900[s]<br \/>\nTotal : 450[min]<\/td>\n<\/tr>\n<tr style=\"height: 103px;\">\n<td style=\"height: 103px;\">Software<\/td>\n<td style=\"height: 103px;\">Astroart5 SP3 with SHS Version 4.0 beta 1<br \/>\nPHD Guiding 2.3.1<br \/>\nSky Safari Pro 4.0.5<br \/>\nStella Image 6Photoshop<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p>\u3053\u306e\u4f5c\u54c1\u64ae\u5f71\u6642\u306e\u30d6\u30ed\u30b0\u306f\u3042\u308a\u307e\u305b\u3093<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Horsehead Nebula (also k&#8230;<\/p>\n","protected":false},"author":1,"featured_media":51,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"footnotes":""},"categories":[8,9],"tags":[14,13,16,20,21],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/posts\/52"}],"collection":[{"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/comments?post=52"}],"version-history":[{"count":5,"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions"}],"predecessor-version":[{"id":275,"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/posts\/52\/revisions\/275"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/media\/51"}],"wp:attachment":[{"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/categories?post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astronote.ksgnet.org\/index.php\/wp-json\/wp\/v2\/tags?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}